Road construction

Claim 1

A ROADWAY CONSTRUCTION COMPRISING PILES EXTENDING INTO THE GROUND SUFFICIENTLY BELOW THE FROST LINE TO PROVIDE ROAD SUPPORT AND HAVING UPPER END PORTIONS EXTENDING ABOVE THE GROUND SURFACE, BEAMS SUPPORTED ON THE UPPER ENDS OF SAID PILES AND EXTENDING TRANSVERSELY OF THE ROADWAY AT SELECTED SPACED INTERVALS, SAID BEAMS HAVING A RECTANGULAR CROSS SEFCTION WITH FLAT UPPER SURFACES AND OPPOSED VERTICAL SIDE SURFACES, A PLURALITY OF RECTANGULAR PERMANUFACTURED CONCRETE SLABS EACH HAVING A LENGTH SLIGHTLY LESS THAN THE CENTER-TO-CENTER SPACING OF SAID BEAMS AND WIDTH WHICH IS A UNIT FRACTION OF THE WIDTH OF THE ROADWAY, EACH OF SAID SLABS EXTENDING BETWEEN AND BEING SUPPORTED BY TWO SUCCESSIVE BEAMS AND HAVING END PORTIONS WHICH ARE NOTCHED TO PROVIDE FLAT LOWER SURFACES RESTING ON THE FLAT UPPER SURFACES OF SAID BEAMS AND VERTICALLY DOWNWARDLY EXTENDING SHOULDERS ENGAGABLE WITH SAID SIDE SURFACES OF SAID BEAMS, A PLURALITY OF SAID SLABS BEING LAID SIDE-BY-SIDE TO MAKE UP THE DESIRED WIDTH OF THE ROADWAY, SAID SLABS HAVING ON THEIR UNDER SIDES DOWNWARDLY PROJECTING INTEGRAL RIBS EXTENDING GENERALLY LENGTHWISE OF SAID SLABS AND HAVING VERTICAL END FACES WHICH ARE COPLANAR WITH SAID SHOULDERS AND ABUT SAID VERTICAL SIDE SURFACES OF THE BEAMS AT THE ENDS OF THE RESPECTIVE SLABS, MEANS CONFINING SAID SLABS AT THE SIDES OF SAID ROADWAY AGASINST LATERALLY OUTWARD MOVEMENT, SAID SLABS BEING SPACED FROM ADJACENT SLABS IN BOTH A LONGITUDINAL AND A TRANSVERSE DIRECTION TO PROVIDE NARROW SPACES BETWEEN ADJACENT SLABS, AND COMPRSSIBLE MATERIAL FILLING SAID SPACES TO PROVIDE WATER TIGHTNESS WHILE PERMITTING LIMITED M OVEMENT IN BOTH LONGITUDINAL AND TRANSVERSE DIRECTIONS ARISING FROM EXPANSION AND CONTRACTION OF SAID SLABS.